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https://issues.apache.org/jira/browse/PDFBOX-4327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16640081#comment-16640081
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ASF subversion and git services commented on PDFBOX-4327:
---------------------------------------------------------
Commit 1842943 from [email protected] in branch 'pdfbox/branches/2.0'
[ https://svn.apache.org/r1842943 ]
PDFBOX-4327: avoid NPEs by copying ExtGState into graphics state
> NullPointerException in PDFStreamEngine.processSoftMask() when running
> ExtractImages
> ------------------------------------------------------------------------------------
>
> Key: PDFBOX-4327
> URL: https://issues.apache.org/jira/browse/PDFBOX-4327
> Project: PDFBox
> Issue Type: Bug
> Components: Utilities
> Affects Versions: 2.0.11
> Reporter: Tilman Hausherr
> Assignee: Tilman Hausherr
> Priority: Major
> Fix For: 2.0.13, 3.0.0 PDFBox
>
> Attachments: 000163-p2.pdf
>
>
> {noformat}
> Exception in thread "main" java.lang.NullPointerException
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processSoftMask(PDFStreamEngine.java:201)
> at
> org.apache.pdfbox.tools.ExtractImages$ImageGraphicsEngine.run(ExtractImages.java:207)
> at
> org.apache.pdfbox.tools.ExtractImages.extract(ExtractImages.java:182)
> at org.apache.pdfbox.tools.ExtractImages.run(ExtractImages.java:145)
> at org.apache.pdfbox.tools.ExtractImages.main(ExtractImages.java:90)
> at org.apache.pdfbox.tools.PDFBox.main(PDFBox.java:62){noformat}
> The cause is that the ExtGState containing the softmask isn't assigned to the
> graphics state. Just assigning the softmask isn't enough (another NPE occurs)
> because the initial CTM (needed by a {{clone()}}) is only set when using
> {{copyIntoGraphicsState}}.
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